Home / 868,712.60-1,303,943.70-419,794.40

Finding the Fourth Proportional to 868,712.60, 1,303,943.70 and 419,794.40

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Solution

The fourth proportional to 868,712.60, 1,303,943.70 and 419,794.40 is: 630,114.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,712.60 : 1,303,943.70 = 419,794.40 : x
  2. Step 2: Convert to fraction form
    868,712.60/1,303,943.70 = 419,794.40/x
  3. Step 3: Cross multiply
    868,712.60x = 1,303,943.70 × 419,794.40
  4. Step 4: Simplify right side
    868,712.60x = 547,388,263,175.28
  5. Step 5: Solve for x
    x = 547,388,263,175.28/868,712.60
  6. Step 6: Final answer
    x = 630,114.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.